I searched and couldnt find exactly my question, apparently my understanding of pre-amps is below average So... does a pre-amp change the tone of a head? Like, what if say you have a Mag 300 and love the tone and sound. Why would you get a pre-amp? And when you get it, what will it do to the sound you love? CHange it completely? or just let you shape it more then the EQ in the head? Sorry i know these questions are kinda weak but, id like to know this stuff. <-- Needs some type of book for dummies. thanks !